1. Contour Lines Contour: the outline of a shape or form
19th Century Drawing by Kasushika Hokusai

2. Contour lines One of the first things we draw
Our brains are “programmed” to see edges and lines:

3. Contour Lines
Contour lines can be outside or inside an object and help define the shape.

4. Contour lines
Help an object look more realistic.

5. Drawing with contour lines
First trace the outside.

6. Drawing with contour lines
Then add the inside lines.

7. Contour lines show depth.
Cartographers (map drawers) use contour lines to show elevation.

8. Blind contour drawings
A technique sometimes used by artists that gets interesting and unexpected results.

9. Examples of contour lines
Henrich Kley, 1923

10. Examples of contour lines: Calder